Patents by Inventor Sebastien Laurent Marie PASCAL

Sebastien Laurent Marie PASCAL has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11952963
    Abstract: A thrust reverser for a turbojet aircraft nacelle includes a fixed structure, a movable structure and an actuator. The actuator extends along a main axis and is connected by a first connection to the fixed structure and by a second connection to the movable structure for the deployment of the movable structure between a direct jet position and a reverse jet position. The actuator is also connected to the fixed structure by a third connection arranged longitudinally between the first connection and the second connection. An axis of the third connection is radially eccentric from the main axis and the third connection allows a predetermined displacement of the actuator with respect to the fixed structure.
    Type: Grant
    Filed: June 17, 2022
    Date of Patent: April 9, 2024
    Assignee: Safran Nacelles
    Inventors: Xavier Cazuc, Vincent Dutot, Sébastien Laurent Marie Pascal, Stephane Riquier, Patrick André Boileau, Fabien Jourdan
  • Patent number: 11913403
    Abstract: A thrust reverser including a stationary structure, a lower door and an upper door. This reverser includes at least one deflector configured to be able to redirect forward from the stationary structure a portion of fluid exiting the reverser according to a trajectory oriented towards a lateral opening extending between the stationary structure and the upper door. Such a deflector makes it possible to improve the control of the air current lines acting on a tail unit and in particular on a control surface of an aircraft equipped with such a reverser when the latter is in thrust reversal configuration, thereby making it possible to improve the controllability of this aircraft.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: February 27, 2024
    Assignee: SAFRAN NACELLES
    Inventors: Sebastien Laurent Marie Pascal, Laurent Georges Valleroy, Paul Ferrey
  • Publication number: 20230184195
    Abstract: A thrust reverser for an aircraft bypass turbojet engine nacelle has a generally annular shape around an axis and includes an annular frame for securing deflection grids. The frame has a first frusto-conical wall widening in the downstream direction and including an upstream peripheral edge configured to be attached to a casing of the turbojet engine. A downstream peripheral edge of the wall extends in the continuation of the wall and secures the upstream ends of the grids. A second annular wall extends radially outwards from an outer frusto-conical face of the first wall. The first and second walls are integrally formed and the second wall has axial openings through which actuators pass.
    Type: Application
    Filed: May 17, 2021
    Publication date: June 15, 2023
    Applicant: SAFRAN NACELLES
    Inventors: Xavier CAZUC, Jean-Philippe JORET, Vincent Jean-François PEYRON, Sébastien Laurent Marie PASCAL
  • Patent number: 11655760
    Abstract: The invention relates to an air intake of an aircraft turbojet engine nacelle extending along an axis X, in which an air flow circulates from upstream to downstream, the air intake comprising an inner wall and an outer wall which are connected by a leading edge and an inner partition so as to delimit an annular cavity, the air intake comprising means for injecting at least one hot air flow into the inner cavity and at least one ventilation orifice formed in the outer wall in order to allow the hot air flow to escape after heating the inner cavity, the air intake comprising at least one acoustic member positioned in the inner cavity facing the ventilation orifice so as to modify the acoustic resonance frequencies and/or to attenuate the acoustic waves formed in the inner cavity via the ventilation orifice.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: May 23, 2023
    Assignee: SAFRAN NACELLES
    Inventors: Sébastien Laurent Marie Pascal, Jean-Michel Paul Ernest Nogues, Marc Versaevel, François Chauveau
  • Publication number: 20230088298
    Abstract: The invention relates to an assembly (601) which comprises a front frame (602) of a thrust reverser structure of an aircraft nacelle and at least one cascade (603). The assembly is characterized in that, when the cascade is fixed to the frame, the axial distance (L) that separates the first blading (605) upstream of the cascade from a covering area (606) between the extension of the cascade and the front frame is greater than or equal to once the mean height (h) of the cascade.
    Type: Application
    Filed: February 16, 2021
    Publication date: March 23, 2023
    Inventors: Xavier CAZUC, Vincent Jean-Francois PEYRON, Jean-Philippe JORET, Sebastien Laurent Marie PASCAL
  • Patent number: 11608781
    Abstract: The invention relates to an air intake of an aircraft turbojet engine nacelle, extending along an axis X, in which an air flow circulates from upstream to downstream, the air intake comprising an inner wall facing the axis X and an outer wall for guiding an external air flow, the walls being connected by a leading edge and an inner partition so as to delimit an annular cavity. The air intake comprises means for injecting at least one hot air flow into the inner cavity and at least one ventilation orifice formed in the outer wall to allow the hot air flow to escape after heating the inner cavity, the ventilation orifice comprising an upstream edge, the circumferential profile of which is discontinuous in order to generate turbulences, and a downstream edge, the radial profile of which is aerodynamic in order to limit the formation of pressure fluctuations.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: March 21, 2023
    Assignee: SAFRAN NACELLES
    Inventors: Sébastien Laurent Marie Pascal, Jean-Michel Paul Ernest Nogues, Marc Versaevel, François Chauveau
  • Publication number: 20230067232
    Abstract: A thrust reverser for an aircraft propulsion assembly, this reverser including a lower door and an upper door defining, in thrust reversal configuration, a deflection opening, through which a portion of the fluid not serving to produce the thrust reversal of the aircraft can exit the reverser downstream. The downstream edge of the lower door is offset towards the rear with respect to the downstream edge of the upper door so as to orient the fluid flow passing through the deflection opening vertically upwards. When the propulsion assembly is mounted at the rear portion of the fuselage of the aircraft, this makes it possible in particular to improve the supply of the control surface of the aircraft in the landing phase, in particular in crosswind conditions.
    Type: Application
    Filed: December 18, 2020
    Publication date: March 2, 2023
    Applicant: SAFRAN NACELLES
    Inventor: Sebastien Laurent Marie PASCAL
  • Patent number: 11591960
    Abstract: The invention relates to an air intake of an aircraft turbojet engine nacelle, extending along an axis X, in which an air flow circulates from upstream to downstream, the air intake extending circumferentially around the axis X and comprising an inner wall, which faces the axis X in order to guide an inner air flow, and an outer wall, which is opposite the inner wall, for guiding an external air flow, the walls being connected by a leading edge and an inner partition so as to delimit an annular cavity. The air intake comprises means for injecting at least one hot air flow into the inner cavity and at least one ventilation orifice formed in the outer wall in order to allow the hot air flow to escape after heating the internal cavity, the air intake comprising at least one disruption member of the external air flow, positioned upstream of the ventilation orifice, which extends outwardly from the outer wall.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: February 28, 2023
    Assignee: SAFRAN NACELLES
    Inventors: Sébastien Laurent Marie Pascal, Jean-Michel Paul Ernest Nogues, Marc Versaevel, François Chauveau
  • Publication number: 20230046876
    Abstract: A thrust reverser including a stationary structure, a lower door and an upper door. This reverser includes at least one deflector configured to be able to redirect forward from the stationary structure a portion of fluid exiting the reverser according to a trajectory oriented towards a lateral opening extending between the stationary structure and the upper door. Such a deflector makes it possible to improve the control of the air current lines acting on a tail unit and in particular on a control surface of an aircraft equipped with such a reverser when the latter is in thrust reversal configuration, thereby making it possible to improve the controllability of this aircraft.
    Type: Application
    Filed: December 18, 2020
    Publication date: February 16, 2023
    Applicant: SAFRAN NACELLES
    Inventors: Sebastien Laurent Marie PASCAL, Laurent Georges VALLEROY, Paul FERREY
  • Publication number: 20230039569
    Abstract: A thrust reverser including doors and at least one flexible deflector obstructing a lateral opening of the thrust reverser when the doors are open. Such a deflector allows better controlling the airflows in thrust reverser configuration and maximizing the counter-thrust force.
    Type: Application
    Filed: December 18, 2020
    Publication date: February 9, 2023
    Applicant: SAFRAN NACELLES
    Inventors: Sebastien Laurent Marie PASCAL, Patrick GONIDEC, Alexandre PHI, Paul FERREY
  • Publication number: 20220316427
    Abstract: A thrust reverser for a turbojet aircraft nacelle includes a fixed structure, a movable structure and an actuator. The actuator extends along a main axis and is connected by a first connection to the fixed structure and by a second connection to the movable structure for the deployment of the movable structure between a direct jet position and a reverse jet position. The actuator is also connected to the fixed structure by a third connection arranged longitudinally between the first connection and the second connection. An axis of the third connection is radially eccentric from the main axis and the third connection allows a predetermined displacement of the actuator with respect to the fixed structure.
    Type: Application
    Filed: June 17, 2022
    Publication date: October 6, 2022
    Applicant: Safran Nacelles
    Inventors: Xavier CAZUC, Vincent DUTOT, Sébastien Laurent Marie PASCAL, Stephane RIQUIER, Patrick André BOILEAU, Fabien JOURDAN
  • Publication number: 20220250757
    Abstract: An assembly including a nacelle element, such as a cover, a device for locking the nacelle element, a key for locking/unlocking the locking device and an indicator for indicating the position of the locking device. This assembly includes a control device which is configured to be actuated by the key when the key is withdrawn from the locking device so as to make the indicator move from a first state to a second state, the state of the indicator being representative of the locked or unlocked position of the locking device.
    Type: Application
    Filed: June 2, 2020
    Publication date: August 11, 2022
    Applicant: SAFRAN NACELLES
    Inventors: Sébastien Laurent Marie PASCAL, Alexandre PHI, Vincent Jean-François PEYRON
  • Publication number: 20220162990
    Abstract: The invention relates to an air intake of an aircraft turbojet engine nacelle extending along an axis X, in which an air flow circulates from upstream to downstream, the air intake comprising an inner wall and an outer wall which are connected by a leading edge and an inner partition so as to delimit an annular cavity, the air intake comprising means for injecting at least one hot air flow into the inner cavity and at least one ventilation orifice formed in the outer wall in order to allow the hot air flow to escape after heating the inner cavity, the air intake comprising at least one acoustic member positioned in the inner cavity facing the ventilation orifice so as to modify the acoustic resonance frequencies and/or to attenuate the acoustic waves formed in the inner cavity via the ventilation orifice.
    Type: Application
    Filed: February 5, 2020
    Publication date: May 26, 2022
    Inventors: Sébastien Laurent, Marie Pascal, Jean-Michel Paul, Ernest Nogues, Marc Versaevel, François Chauveau
  • Publication number: 20220136439
    Abstract: The invention relates to an air intake of an aircraft turbojet engine nacelle, extending along an axis X, in which an air flow circulates from upstream to downstream, the air intake comprising an inner wall facing the axis X and an outer wall for guiding an external air flow, the walls being connected by a leading edge and an inner partition so as to delimit an annular cavity. The air intake comprises means for injecting at least one hot air flow into the inner cavity and at least one ventilation orifice formed in the outer wall to allow the hot air flow to escape after heating the inner cavity, the ventilation orifice comprising an upstream edge, the circumferential profile of which is discontinuous in order to generate turbulences, and a downstream edge, the radial profile of which is aerodynamic in order to limit the formation of pressure fluctuations.
    Type: Application
    Filed: January 22, 2020
    Publication date: May 5, 2022
    Inventors: Sébastien Laurent, Marie Pascal, Jean-Michel Paul, Ernest Nogues, Marc Versaevel, François Chauveau
  • Publication number: 20220099023
    Abstract: The invention relates to an air intake of an aircraft turbojet engine nacelle, extending along an axis X, in which an air flow circulates from upstream to downstream, the air intake extending circumferentially around the axis X and comprising an inner wall, which faces the axis X in order to guide an inner air flow, and an outer wall, which is opposite the inner wall, for guiding an external air flow, the walls being connected by a leading edge and an inner partition so as to delimit an annular cavity. The air intake comprises means for injecting at least one hot air flow into the inner cavity and at least one ventilation orifice formed in the outer wall in order to allow the hot air flow to escape after heating the internal cavity, the air intake comprising at least one disruption member of the external air flow, positioned upstream of the ventilation orifice, which extends outwardly from the outer wall.
    Type: Application
    Filed: January 22, 2020
    Publication date: March 31, 2022
    Inventors: Sébastien Laurent, Marie Pascal, Jean-Michel Paul, Ernest Nogues, Marc Versaevel, François Chauveau
  • Patent number: 10018152
    Abstract: A turbojet engine nacelle includes a thrust reversing device having doors that swing to brake a direct gas flow, guiding it through counter-thrust openings, and the inside of each door has, at the front, a cavity receiving a spoiler turned towards the front when this door is open. The nacelle includes a fixed structure upstream from each door supporting a deflection edge that partially covers the cavity. In particular, the fixed structure supports, on each side, counter-thrust openings, a flank disposed in the continuation of the deflection edge and extending behind the cavity, which is incorporated into a leaf of the door.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: July 10, 2018
    Assignee: AIRCELLE
    Inventors: Sébastien Laurent Marie Pascal, Alexandre Breton
  • Publication number: 20160076485
    Abstract: A turbojet engine nacelle includes a thrust reversing device having doors that swing to brake a direct gas flow, guiding it through counter-thrust openings, and the inside of each door has, at the front, a cavity receiving a spoiler turned towards the front when this door is open. The nacelle includes a fixed structure upstream from each door supporting a deflection edge that partially covers the cavity. In particular, the fixed structure supports, on each side, counter-thrust openings, a flank disposed in the continuation of the deflection edge and extending behind the cavity, which is incorporated into a leaf of the door.
    Type: Application
    Filed: November 24, 2015
    Publication date: March 17, 2016
    Applicant: AIRCELLE
    Inventors: Sébastien Laurent Marie PASCAL, Alexandre BRETON